Suppose that a Bayesian spam filter is trained on a set of 5000 spam messages and 7500 messages that are not spam. The word "achievement" appears in 1000 spam messages and 150 messages that are not spam, while the word "research" appears in 800 spam messages and 300 messages that are not spam. Estimate the probability that a received message containing both the words "achievement" and "research" is spam. Will the message be rejected as spam if the threshold for rejecting spam is 0.9?
Suppose that a Bayesian spam filter is trained on a set of 5000 spam messages and 7500 messages that are not spam. The word "achievement" appears in 1000 spam messages and 150 messages that are not spam, while the word "research" appears in 800 spam messages and 300 messages that are not spam. Estimate the probability that a received message containing both the words "achievement" and "research" is spam. Will the message be rejected as spam if the threshold for rejecting spam is 0.9?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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